.display{display: none;}

.form{
    position:fixed;
    width:100%;
    height:100%;
    left:0;
    top:0;
    background:#000;
    opacity:0.8;
    filter:alpha(opacity=50);
    z-index:97;
}
.form form{
    width: 1000px;
    margin: 100px auto;
    color: red;
}

.log{
    width: 980px;
    margin: 5px auto;
    background-color: #f9f9f9;
}






.content {
    width: 1000px;
    margin: 100px auto;
    /*background-color: #f9f9f9;*/
}

.content button {
    font-size: larger;
    width: 800px;
    height: 160px;
    margin-bottom: 100px;
    box-shadow: 10px 10px 5px lime;
}

@media screen and (max-width: 960px) {
    .content {
        width: 200px;
        margin: 100px auto;
    }

    .content button {
        font-size: small;
        width: 200px;
        height: 60px;
        margin-bottom: 100px;
        box-shadow: 5px 5px 2px lime;
    }
}

